Unless a Windows user is installing the software, that screen would be displayed in approximately zero of the cases where a package manager was used to install the software. Similarly, exactly zero widely-used Docker images that contain the software would display this splash screen, as the software would already have been installed.
In short, unless you're a Windows user there are so __very__ many ways to install software that aren't "Go to the project home page, download a generic install binary, run that binary with world-write permissions.". Aside from very small-time projects, I can't think of the last time I used an officially-maintained install script that I got from the project's servers to install something.
In short, unless you're a Windows user there are so __very__ many ways to install software that aren't "Go to the project home page, download a generic install binary, run that binary with world-write permissions.". Aside from very small-time projects, I can't think of the last time I used an officially-maintained install script that I got from the project's servers to install something.